| Summary: | 碩士 === 中原大學 === 機械工程研究所 === 91 === ABSTRACT
In this article, applications of CAE are used on analyses of the industrial shafts. The finite element method is the basis during the processes of building model, rotor-bearing system is divided into several substructures, and discrete each of substructures. Finally, the motion equation of the whole structures is combined by the nodal variables and force balances on connection of each substructure.
The analyses are done by the finite element model built of shafts by software ”ANSYS”. According to analytical results, the relationships between the mode frequencies of systems, rigidity of the bearing, and working velocity can be shown to design a safe range of system.
It’s increasing the strength that is against bending of the shaft because of the rotor cover the shaft, or each of them has different contacting stiffness, and it brings the virtual diameter and the joint stiffness. In this article, let’s explore involves of rotor-bearing system by two generally geometric parameter that are the virtual diameter and the joint stiffness. Based on the finite element method, using ANSYS to build models and solve. Rotor-bearing system of Motor for example, using known experimental values to compare with analytic results, to choose the suitable way of building model by experimental values, to get the more correct model, to raise the accuracy of the analyses, and to provide designers a reliable data.
|
|---|
